61237026312 has 128 divisors (see below), whose sum is σ = 191280061440. Its totient is φ = 15871438080.

The previous prime is 61237026307. The next prime is 61237026343. The reversal of 61237026312 is 21362073216.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 827538 + ... + 898494.

It is an arithmetic number, because the mean of its divisors is an integer number (1494375480).

Almost surely, 2^61237026312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61237026312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95640030720).

61237026312 is an abundant number, since it is smaller than the sum of its proper divisors (130043035128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61237026312 is a wasteful number, since it uses less digits than its factorization.

61237026312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71451 (or 71447 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

Adding to 61237026312 its reverse (21362073216), we get a palindrome (82599099528).

The spelling of 61237026312 in words is "sixty-one billion, two hundred thirty-seven million, twenty-six thousand, three hundred twelve".